<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>我的个人OJ系统</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html,
        body {
            width: 100%;
            height: 100%;
            font-family: "Microsoft Yahei", sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
        }

        .container .navbar {
            width: 100%;
            height: 60px;
            background-color: #2c3e50;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 999;
        }

        .container .navbar a {
            display: inline-block;
            width: 100px;
            color: #ecf0f1;
            font-size: 16px;
            line-height: 60px;
            text-decoration: none;
            text-align: center;
            transition: all 0.3s ease;
        }

        .container .navbar a:hover {
            background-color: #3498db;
            transform: scale(1.05);
        }

        .container .navbar .login {
            float: right;
            background-color: #e74c3c;
            border-radius: 4px;
            margin-right: 20px;
        }

        .container .navbar .login:hover {
            background-color: #c0392b;
        }

        .container .content {
            width: 800px;
            margin: 0 auto;
            text-align: center;
            margin-top: 120px;
            background-color: rgba(255, 255, 255, 0.85);
            padding: 40px 60px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            animation: fadeIn 1s ease-in-out;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .container .content .title {
            display: block;
            font-size: 36px;
            color: #2c3e50;
            margin-bottom: 20px;
            font-weight: 700;
            letter-spacing: 2px;
        }

        .container .content .desc {
            display: block;
            font-size: 18px;
            color: #7f8c8d;
            line-height: 1.6;
            margin-bottom: 30px;
        }

        .container .content .start-btn {
            display: inline-block;
            padding: 12px 30px;
            background-color: #2ecc71;
            color: white;
            text-decoration: none;
            font-size: 18px;
            border-radius: 30px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 10px rgba(46, 204, 113, 0.3);
        }

        .container .content .start-btn:hover {
            background-color: #27ae60;
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(46, 204, 113, 0.4);
        }
    </style>
</head>

<body>
    <div class="container">
        <div class="navbar">
            <a href="/">首页</a>
            <a href="/question_list">题库</a>
            <a href="#">竞赛</a>
            <a href="#">讨论</a>
            <a href="#">求职</a>
            <a class="login" href="#">登录</a>
        </div>
        <div class="content">
            <h1 class="title">欢迎来到我的在线OJ平台</h1>
            <p class="desc"></p>
            <a class="start-btn" href="/question_list">点击开始编程</a>
        </div>
    </div>
</body>

</html>